21100122002022 has 16 divisors (see below), whose sum is σ = 48228850290432. Its totient is φ = 6028606286280.

The previous prime is 21100122001961. The next prime is 21100122002039. The reversal of 21100122002022 is 22020022100112.

It is a junction number, because it is equal to n+sod(n) for n = 21100122001992 and 21100122002010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251191928554 + ... + 251191928637.

It is an arithmetic number, because the mean of its divisors is an integer number (3014303143152).

Almost surely, 2^{21100122002022} is an apocalyptic number.

21100122002022 is an abundant number, since it is smaller than the sum of its proper divisors (27128728288410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21100122002022 is a wasteful number, since it uses less digits than its factorization.

21100122002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502383857203.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21100122002022 its reverse (22020022100112), we get a palindrome (43120144102134).

The spelling of 21100122002022 in words is "twenty-one trillion, one hundred billion, one hundred twenty-two million, two thousand, twenty-two".